| 释义 |
pennycutaway r.
- halfpennyworthn. 仅值半便士的东西,无价值之物
- punctuationaladj. 断续性的
- perfunctorilyadv. 敷衍地；潦草地；表面地
- 读、写、算dú _ xiě _ suàn
the three R's
- 每分钟转数měi fèn zhōng zhuǎn shù
revolutions per minute (r/m)
- 阴极射线管yīn jí shè xiàn guǎn
cathode-ray tube (CRT); cathode-ray lamp; C-R tube
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